Operating System (OS)
A program

is typically characterized by interactive processing and time of the CPU
is the device where information is stored
is a sequence of instructions
is a device that performs a sequence of operations specified by instructions in memory.
None of these

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Operating System (OS)
Capacity planning

does not depend on the monitoring tools available
is not needed in small installations
requires detailed system performance information
None of these
is independent of the operating system

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Operating System (OS)
The Memory Buffer Register (MBR)

None of these
is a hardware memory device which denotes the location of the current instruction being executed.
contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
contains the address of the memory location that is to be read from or stored into.
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.

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